| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. Kupreichik vs G Timoscenko |
 | 1-0 | 27 | 1968 | URS | C02 French, Advance |
| 52. A Shmit vs Kupreichik |
| 0-1 | 40 | 1968 | Odessa | B35 Sicilian, Accelerated Fianchetto, Modern Variation with Bc4 |
| 53. Bagirov vs Kupreichik |
| 1-0 | 60 | 1968 | Gomel | E69 King's Indian, Fianchetto, Classical Main line |
| 54. Kupreichik vs Dzindzichashvili |
| 0-1 | 25 | 1968 | URS | C62 Ruy Lopez, Old Steinitz Defense |
| 55. A Kapengut vs Kupreichik |
| 1-0 | 39 | 1968 | Belarusian Championship | B27 Sicilian |
| 56. Kupreichik vs Balashov |
| 1-0 | 41 | 1968 | URS-ch U26 | B06 Robatsch |
| 57. Kupreichik vs A Kapengut |
| 1-0 | 28 | 1968 | URS | B10 Caro-Kann |
| 58. Kupreichik vs G Castiglioni |
| 1-0 | 24 | 1968 | WchT U26 15th qual-A | B18 Caro-Kann, Classical |
| 59. S Martinovic vs Kupreichik |
| 0-1 | 23 | 1968 | WchT U26 15th fin-A | B35 Sicilian, Accelerated Fianchetto, Modern Variation with Bc4 |
| 60. Kupreichik vs B Viglundsson |
| 1-0 | 62 | 1968 | WchT U26 15th fin-A | C65 Ruy Lopez, Berlin Defense |
| 61. Kupreichik vs E Mozes |
| ½-½ | 41 | 1968 | WchT U26 15th fin-A | C70 Ruy Lopez |
| 62. Kupreichik vs J Georgiev |
| 1-0 | 34 | 1968 | WchT U26 15th fin-A | B32 Sicilian |
| 63. J Blackstone vs Kupreichik |
| 0-1 | 35 | 1968 | WchT U26 15th fin-A | B32 Sicilian |
| 64. K Peebo vs Kupreichik |
| 0-1 | 18 | 1968 | 6th Soviet Team Cup | B32 Sicilian |
| 65. Kupreichik vs D Kudischewitsch |
| 0-1 | 53 | 1968 | 6th Soviet Team Cup | B18 Caro-Kann, Classical |
| 66. G Fedorov vs Kupreichik |
| 0-1 | 25 | 1968 | 6th Soviet Team Cup | B02 Alekhine's Defense |
| 67. Kupreichik vs V Akimov |
| ½-½ | 59 | 1968 | 6th Soviet Team Cup | C47 Four Knights |
| 68. L Zolotonos vs Kupreichik |
| ½-½ | 24 | 1968 | 6th Soviet Team Cup | B83 Sicilian |
| 69. Kupreichik vs G Barenboim |
| 1-0 | 28 | 1968 | 6th Soviet Team Cup | B45 Sicilian, Taimanov |
| 70. V Lipman vs Kupreichik |
| 0-1 | 30 | 1968 | 6th Soviet Team Cup | B03 Alekhine's Defense |
| 71. Kupreichik vs A Beliavsky |
| 1-0 | 43 | 1968 | 6th Soviet Team Cup | C77 Ruy Lopez |
| 72. Koolmeister vs Kupreichik |
| 0-1 | 69 | 1968 | 6th Soviet Team Cup | D25 Queen's Gambit Accepted |
| 73. V Vorobiev vs Kupreichik |
| 0-1 | 31 | 1968 | 6th Soviet Team Cup | A02 Bird's Opening |
| 74. Kupreichik vs V Gusev |
| 1-0 | 45 | 1968 | 6th Soviet Team Cup | C02 French, Advance |
| 75. A Kapengut vs Kupreichik |
| 1-0 | 28 | 1969 | URS | B03 Alekhine's Defense |
Kibitzing
